node.js

const fetch = require("node-fetch");
const express = require('express')
const app = express()

String.prototype.replaceAll = function (search, replacement) {
    return this.replace(new RegExp(search, 'g'), replacement);
};

const parseFile = url =>
    url.split('=')[1].split('&')[0].replaceAll('%2F', '/').replaceAll('%3A', ':');

const url = x => `https://gs.3g.cn/D/${x.toString(16)}/w`;

const format = (url, url2) => {
    const style = `style="height:400px;"`;
    if (url.endsWith('.zip')) {
        return `<iframe src='${url2}' ${style}></iframe>`;
    }
    const format = url.endsWith('.mp3') ? 'audio' : (url.endsWith('.mp4') ? 'video' : 'img');
    return `<${format} src='${url}' ${style}></${format}>`;
}

app.get('/:start/:end', async (req, res) => {
    const start = parseInt(req.params.start),
        end = parseInt(req.params.end);
    console.log(start, end);

    const urls = Array(end).fill(start).map((i, j) => i + j).map(x => url(x));

    const results = await Promise.all(urls.map(async u =>
        fetch(u)
            .then(r => {
                return [parseFile(r.url), u];
            })
            .catch(() => console.log('error', u))
    ));
    // console.log(results);

    res.send(results.map(r => `<a href='${r[1]}' >${format(r[0], r[1])}</a>`).join('\n'));
})

app.listen(8000, () => console.log(`http://localhost:8000/14000000/10`));